J. Glaser and Co., Inc. Network services and implementation consultancy. http://www.jglaser.com/

JAS Technologies, Inc. IT Consulting firm specializing in training and LAN and WAN networks design and consulting. http://www.jas-technologies.com/

International Network Services Offer a full range of consulting services and business solutions. End-to-end network consulting solutions address needs in Next Generation Networking, security, and network and systems management. http://www.ins.com/